xorg_renderer.c revision 124ae596806f1a77af46f1f0e446d448da6e953a
1#include "xorg_exa.h" 2#include "xorg_renderer.h" 3 4#include "xorg_exa_tgsi.h" 5 6#include "cso_cache/cso_context.h" 7#include "util/u_draw_quad.h" 8#include "util/u_math.h" 9#include "util/u_memory.h" 10#include "util/u_rect.h" 11 12#include "pipe/p_inlines.h" 13 14#include <math.h> 15 16#define floatsEqual(x, y) (fabs(x - y) <= 0.00001f * MIN2(fabs(x), fabs(y))) 17#define floatIsZero(x) (floatsEqual((x) + 1, 1)) 18 19#define NUM_COMPONENTS 4 20 21static INLINE boolean is_affine(float *matrix) 22{ 23 return floatIsZero(matrix[2]) && floatIsZero(matrix[5]) 24 && floatsEqual(matrix[8], 1); 25} 26static INLINE void map_point(float *mat, float x, float y, 27 float *out_x, float *out_y) 28{ 29 if (!mat) { 30 *out_x = x; 31 *out_y = y; 32 return; 33 } 34 35 *out_x = mat[0]*x + mat[3]*y + mat[6]; 36 *out_y = mat[1]*x + mat[4]*y + mat[7]; 37 if (!is_affine(mat)) { 38 float w = 1/(mat[2]*x + mat[5]*y + mat[8]); 39 *out_x *= w; 40 *out_y *= w; 41 } 42} 43 44static INLINE struct pipe_buffer * 45renderer_buffer_create(struct xorg_renderer *r) 46{ 47 struct pipe_buffer *buf = 48 pipe_user_buffer_create(r->pipe->screen, 49 r->buffer, 50 sizeof(float)* 51 r->buffer_size); 52 r->buffer_size = 0; 53 54 return buf; 55} 56 57static INLINE void 58renderer_draw(struct xorg_renderer *r) 59{ 60 struct pipe_context *pipe = r->pipe; 61 struct pipe_buffer *buf = 0; 62 int num_verts = r->buffer_size/(r->attrs_per_vertex * NUM_COMPONENTS); 63 64 if (!r->buffer_size) 65 return; 66 67 buf = renderer_buffer_create(r); 68 69 70 if (buf) { 71 util_draw_vertex_buffer(pipe, buf, 0, 72 PIPE_PRIM_QUADS, 73 num_verts, /* verts */ 74 r->attrs_per_vertex); /* attribs/vert */ 75 76 pipe_buffer_reference(&buf, NULL); 77 } 78} 79 80static INLINE void 81renderer_draw_conditional(struct xorg_renderer *r, 82 int next_batch) 83{ 84 if (r->buffer_size + next_batch >= BUF_SIZE || 85 (next_batch == 0 && r->buffer_size)) { 86 renderer_draw(r); 87 } 88} 89 90static void 91renderer_init_state(struct xorg_renderer *r) 92{ 93 struct pipe_depth_stencil_alpha_state dsa; 94 struct pipe_rasterizer_state raster; 95 96 /* set common initial clip state */ 97 memset(&dsa, 0, sizeof(struct pipe_depth_stencil_alpha_state)); 98 cso_set_depth_stencil_alpha(r->cso, &dsa); 99 100 101 /* XXX: move to renderer_init_state? */ 102 memset(&raster, 0, sizeof(struct pipe_rasterizer_state)); 103 raster.gl_rasterization_rules = 1; 104 cso_set_rasterizer(r->cso, &raster); 105 106} 107 108 109static INLINE void 110add_vertex_color(struct xorg_renderer *r, 111 float x, float y, 112 float color[4]) 113{ 114 float *vertex = r->buffer + r->buffer_size; 115 116 vertex[0] = x; 117 vertex[1] = y; 118 vertex[2] = 0.f; /*z*/ 119 vertex[3] = 1.f; /*w*/ 120 121 vertex[4] = color[0]; /*r*/ 122 vertex[5] = color[1]; /*g*/ 123 vertex[6] = color[2]; /*b*/ 124 vertex[7] = color[3]; /*a*/ 125 126 r->buffer_size += 8; 127} 128 129static INLINE void 130add_vertex_1tex(struct xorg_renderer *r, 131 float x, float y, float s, float t) 132{ 133 float *vertex = r->buffer + r->buffer_size; 134 135 vertex[0] = x; 136 vertex[1] = y; 137 vertex[2] = 0.f; /*z*/ 138 vertex[3] = 1.f; /*w*/ 139 140 vertex[4] = s; /*s*/ 141 vertex[5] = t; /*t*/ 142 vertex[6] = 0.f; /*r*/ 143 vertex[7] = 1.f; /*q*/ 144 145 r->buffer_size += 8; 146} 147 148static void 149add_vertex_data1(struct xorg_renderer *r, 150 float srcX, float srcY, float dstX, float dstY, 151 float width, float height, 152 struct pipe_texture *src, float *src_matrix) 153{ 154 float s0, t0, s1, t1, s2, t2, s3, t3; 155 float pt0[2], pt1[2], pt2[2], pt3[2]; 156 157 pt0[0] = srcX; 158 pt0[1] = srcY; 159 pt1[0] = (srcX + width); 160 pt1[1] = srcY; 161 pt2[0] = (srcX + width); 162 pt2[1] = (srcY + height); 163 pt3[0] = srcX; 164 pt3[1] = (srcY + height); 165 166 if (src_matrix) { 167 map_point(src_matrix, pt0[0], pt0[1], &pt0[0], &pt0[1]); 168 map_point(src_matrix, pt1[0], pt1[1], &pt1[0], &pt1[1]); 169 map_point(src_matrix, pt2[0], pt2[1], &pt2[0], &pt2[1]); 170 map_point(src_matrix, pt3[0], pt3[1], &pt3[0], &pt3[1]); 171 } 172 173 s0 = pt0[0] / src->width[0]; 174 s1 = pt1[0] / src->width[0]; 175 s2 = pt2[0] / src->width[0]; 176 s3 = pt3[0] / src->width[0]; 177 t0 = pt0[1] / src->height[0]; 178 t1 = pt1[1] / src->height[0]; 179 t2 = pt2[1] / src->height[0]; 180 t3 = pt3[1] / src->height[0]; 181 182 /* 1st vertex */ 183 add_vertex_1tex(r, dstX, dstY, s0, t0); 184 /* 2nd vertex */ 185 add_vertex_1tex(r, dstX + width, dstY, s1, t1); 186 /* 3rd vertex */ 187 add_vertex_1tex(r, dstX + width, dstY + height, s2, t2); 188 /* 4th vertex */ 189 add_vertex_1tex(r, dstX, dstY + height, s3, t3); 190} 191 192 193static INLINE void 194add_vertex_2tex(struct xorg_renderer *r, 195 float x, float y, 196 float s0, float t0, float s1, float t1) 197{ 198 float *vertex = r->buffer + r->buffer_size; 199 200 vertex[0] = x; 201 vertex[1] = y; 202 vertex[2] = 0.f; /*z*/ 203 vertex[3] = 1.f; /*w*/ 204 205 vertex[4] = s0; /*s*/ 206 vertex[5] = t0; /*t*/ 207 vertex[6] = 0.f; /*r*/ 208 vertex[7] = 1.f; /*q*/ 209 210 vertex[8] = s1; /*s*/ 211 vertex[9] = t1; /*t*/ 212 vertex[10] = 0.f; /*r*/ 213 vertex[11] = 1.f; /*q*/ 214 215 r->buffer_size += 12; 216} 217 218static void 219add_vertex_data2(struct xorg_renderer *r, 220 float srcX, float srcY, float maskX, float maskY, 221 float dstX, float dstY, float width, float height, 222 struct pipe_texture *src, 223 struct pipe_texture *mask, 224 float *src_matrix, float *mask_matrix) 225{ 226 float src_s0, src_t0, src_s1, src_t1; 227 float mask_s0, mask_t0, mask_s1, mask_t1; 228 float spt0[2], spt1[2]; 229 float mpt0[2], mpt1[2]; 230 231 spt0[0] = srcX; 232 spt0[1] = srcY; 233 spt1[0] = srcX + width; 234 spt1[1] = srcY + height; 235 236 mpt0[0] = maskX; 237 mpt0[1] = maskY; 238 mpt1[0] = maskX + width; 239 mpt1[1] = maskY + height; 240 241 if (src_matrix) { 242 map_point(src_matrix, spt0[0], spt0[1], &spt0[0], &spt0[1]); 243 map_point(src_matrix, spt1[0], spt1[1], &spt1[0], &spt1[1]); 244 } 245 246 if (mask_matrix) { 247 map_point(mask_matrix, mpt0[0], mpt0[1], &mpt0[0], &mpt0[1]); 248 map_point(mask_matrix, mpt1[0], mpt1[1], &mpt1[0], &mpt1[1]); 249 } 250 251 src_s0 = spt0[0] / src->width[0]; 252 src_t0 = spt0[1] / src->height[0]; 253 src_s1 = spt1[0] / src->width[0]; 254 src_t1 = spt1[1] / src->height[0]; 255 256 mask_s0 = mpt0[0] / mask->width[0]; 257 mask_t0 = mpt0[1] / mask->height[0]; 258 mask_s1 = mpt1[0] / mask->width[0]; 259 mask_t1 = mpt1[1] / mask->height[0]; 260 261 /* 1st vertex */ 262 add_vertex_2tex(r, dstX, dstY, 263 src_s0, src_t0, mask_s0, mask_t0); 264 /* 2nd vertex */ 265 add_vertex_2tex(r, dstX + width, dstY, 266 src_s1, src_t0, mask_s1, mask_t0); 267 /* 3rd vertex */ 268 add_vertex_2tex(r, dstX + width, dstY + height, 269 src_s1, src_t1, mask_s1, mask_t1); 270 /* 4th vertex */ 271 add_vertex_2tex(r, dstX, dstY + height, 272 src_s0, src_t1, mask_s0, mask_t1); 273} 274 275static struct pipe_buffer * 276setup_vertex_data_yuv(struct xorg_renderer *r, 277 float srcX, float srcY, float srcW, float srcH, 278 float dstX, float dstY, float dstW, float dstH, 279 struct pipe_texture **tex) 280{ 281 float s0, t0, s1, t1; 282 float spt0[2], spt1[2]; 283 284 spt0[0] = srcX; 285 spt0[1] = srcY; 286 spt1[0] = srcX + srcW; 287 spt1[1] = srcY + srcH; 288 289 s0 = spt0[0] / tex[0]->width[0]; 290 t0 = spt0[1] / tex[0]->height[0]; 291 s1 = spt1[0] / tex[0]->width[0]; 292 t1 = spt1[1] / tex[0]->height[0]; 293 294 /* 1st vertex */ 295 add_vertex_1tex(r, dstX, dstY, s0, t0); 296 /* 2nd vertex */ 297 add_vertex_1tex(r, dstX + dstW, dstY, 298 s1, t0); 299 /* 3rd vertex */ 300 add_vertex_1tex(r, dstX + dstW, dstY + dstH, 301 s1, t1); 302 /* 4th vertex */ 303 add_vertex_1tex(r, dstX, dstY + dstH, 304 s0, t1); 305 306 return renderer_buffer_create(r); 307} 308 309 310 311/* Set up framebuffer, viewport and vertex shader constant buffer 312 * state for a particular destinaton surface. In all our rendering, 313 * these concepts are linked. 314 */ 315void renderer_bind_destination(struct xorg_renderer *r, 316 struct pipe_surface *surface, 317 int width, 318 int height ) 319{ 320 321 struct pipe_framebuffer_state fb; 322 struct pipe_viewport_state viewport; 323 324 /* Framebuffer uses actual surface width/height 325 */ 326 memset(&fb, 0, sizeof fb); 327 fb.width = surface->width; 328 fb.height = surface->height; 329 fb.nr_cbufs = 1; 330 fb.cbufs[0] = surface; 331 fb.zsbuf = 0; 332 333 /* Viewport sets us up to just touch the bit we're interested in: 334 */ 335 viewport.scale[0] = width / 2.f; 336 viewport.scale[1] = height / 2.f; 337 viewport.scale[2] = 1.0; 338 viewport.scale[3] = 1.0; 339 viewport.translate[0] = width / 2.f; 340 viewport.translate[1] = height / 2.f; 341 viewport.translate[2] = 0.0; 342 viewport.translate[3] = 0.0; 343 344 /* Constant buffer set up to match viewport dimensions: 345 */ 346 if (r->fb_width != width || 347 r->fb_height != height) 348 { 349 float vs_consts[8] = { 350 2.f/width, 2.f/height, 1, 1, 351 -1, -1, 0, 0 352 }; 353 354 r->fb_width = width; 355 r->fb_height = height; 356 357 renderer_set_constants(r, PIPE_SHADER_VERTEX, 358 vs_consts, sizeof vs_consts); 359 } 360 361 cso_set_framebuffer(r->cso, &fb); 362 cso_set_viewport(r->cso, &viewport); 363} 364 365 366struct xorg_renderer * renderer_create(struct pipe_context *pipe) 367{ 368 struct xorg_renderer *renderer = CALLOC_STRUCT(xorg_renderer); 369 370 renderer->pipe = pipe; 371 renderer->cso = cso_create_context(pipe); 372 renderer->shaders = xorg_shaders_create(renderer); 373 374 renderer_init_state(renderer); 375 376 return renderer; 377} 378 379void renderer_destroy(struct xorg_renderer *r) 380{ 381 struct pipe_constant_buffer *vsbuf = &r->vs_const_buffer; 382 struct pipe_constant_buffer *fsbuf = &r->fs_const_buffer; 383 384 if (vsbuf && vsbuf->buffer) 385 pipe_buffer_reference(&vsbuf->buffer, NULL); 386 387 if (fsbuf && fsbuf->buffer) 388 pipe_buffer_reference(&fsbuf->buffer, NULL); 389 390 if (r->shaders) { 391 xorg_shaders_destroy(r->shaders); 392 r->shaders = NULL; 393 } 394 395 if (r->cso) { 396 cso_release_all(r->cso); 397 cso_destroy_context(r->cso); 398 r->cso = NULL; 399 } 400} 401 402 403 404 405 406void renderer_set_constants(struct xorg_renderer *r, 407 int shader_type, 408 const float *params, 409 int param_bytes) 410{ 411 struct pipe_constant_buffer *cbuf = 412 (shader_type == PIPE_SHADER_VERTEX) ? &r->vs_const_buffer : 413 &r->fs_const_buffer; 414 415 pipe_buffer_reference(&cbuf->buffer, NULL); 416 cbuf->buffer = pipe_buffer_create(r->pipe->screen, 16, 417 PIPE_BUFFER_USAGE_CONSTANT, 418 param_bytes); 419 420 if (cbuf->buffer) { 421 pipe_buffer_write(r->pipe->screen, cbuf->buffer, 422 0, param_bytes, params); 423 } 424 r->pipe->set_constant_buffer(r->pipe, shader_type, 0, cbuf); 425} 426 427 428void renderer_copy_prepare(struct xorg_renderer *r, 429 struct pipe_surface *dst_surface, 430 struct pipe_texture *src_texture) 431{ 432 struct pipe_context *pipe = r->pipe; 433 struct pipe_screen *screen = pipe->screen; 434 struct xorg_shader shader; 435 436 assert(screen->is_format_supported(screen, dst_surface->format, 437 PIPE_TEXTURE_2D, 438 PIPE_TEXTURE_USAGE_RENDER_TARGET, 439 0)); 440 441 442 /* set misc state we care about */ 443 { 444 struct pipe_blend_state blend; 445 memset(&blend, 0, sizeof(blend)); 446 blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE; 447 blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE; 448 blend.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO; 449 blend.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO; 450 blend.colormask = PIPE_MASK_RGBA; 451 cso_set_blend(r->cso, &blend); 452 } 453 454 /* sampler */ 455 { 456 struct pipe_sampler_state sampler; 457 memset(&sampler, 0, sizeof(sampler)); 458 sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 459 sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 460 sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 461 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 462 sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; 463 sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; 464 sampler.normalized_coords = 1; 465 cso_single_sampler(r->cso, 0, &sampler); 466 cso_single_sampler_done(r->cso); 467 } 468 469 renderer_bind_destination(r, dst_surface); 470 471 /* texture */ 472 cso_set_sampler_textures(r->cso, 1, &src_texture); 473 474 /* shaders */ 475 shader = xorg_shaders_get(r->shaders, 476 VS_COMPOSITE, 477 FS_COMPOSITE); 478 cso_set_vertex_shader_handle(r->cso, shader.vs); 479 cso_set_fragment_shader_handle(r->cso, shader.fs); 480 481 r->buffer_size = 0; 482 r->attrs_per_vertex = 2; 483} 484 485struct pipe_texture * 486renderer_clone_texture(struct xorg_renderer *r, 487 struct pipe_texture *src) 488{ 489 enum pipe_format format; 490 struct pipe_context *pipe = r->pipe; 491 struct pipe_screen *screen = pipe->screen; 492 struct pipe_texture *pt; 493 struct pipe_texture templ; 494 495 if (pipe->is_texture_referenced(pipe, src, 0, 0) & 496 PIPE_REFERENCED_FOR_WRITE) 497 pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL); 498 499 /* the coming in texture should already have that invariance */ 500 debug_assert(screen->is_format_supported(screen, src->format, 501 PIPE_TEXTURE_2D, 502 PIPE_TEXTURE_USAGE_SAMPLER, 0)); 503 504 format = src->format; 505 506 memset(&templ, 0, sizeof(templ)); 507 templ.target = PIPE_TEXTURE_2D; 508 templ.format = format; 509 templ.last_level = 0; 510 templ.width[0] = src->width[0]; 511 templ.height[0] = src->height[0]; 512 templ.depth[0] = 1; 513 pf_get_block(format, &templ.block); 514 templ.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER; 515 516 pt = screen->texture_create(screen, &templ); 517 518 debug_assert(!pt || pipe_is_referenced(&pt->reference)); 519 520 if (!pt) 521 return NULL; 522 523 { 524 /* copy source framebuffer surface into texture */ 525 struct pipe_surface *ps_read = screen->get_tex_surface( 526 screen, src, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_READ); 527 struct pipe_surface *ps_tex = screen->get_tex_surface( 528 screen, pt, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_WRITE ); 529 if (pipe->surface_copy) { 530 pipe->surface_copy(pipe, 531 ps_tex, /* dest */ 532 0, 0, /* destx/y */ 533 ps_read, 534 0, 0, src->width[0], src->height[0]); 535 } else { 536 util_surface_copy(pipe, FALSE, 537 ps_tex, /* dest */ 538 0, 0, /* destx/y */ 539 ps_read, 540 0, 0, src->width[0], src->height[0]); 541 } 542 pipe_surface_reference(&ps_read, NULL); 543 pipe_surface_reference(&ps_tex, NULL); 544 } 545 546 return pt; 547} 548 549 550void renderer_copy_pixmap(struct xorg_renderer *r, 551 int dx, int dy, 552 int sx, int sy, 553 int width, int height, 554 float src_width, 555 float src_height) 556{ 557 float s0, t0, s1, t1; 558 float x0, y0, x1, y1; 559 560 561 /* XXX: could put the texcoord scaling calculation into the vertex 562 * shader. 563 */ 564 s0 = sx / src_width; 565 s1 = (sx + width) / src_width; 566 t0 = sy / src_height; 567 t1 = (sy + height) / src_height; 568 569 x0 = dx; 570 x1 = dx + width; 571 y0 = dy; 572 y1 = dy + height; 573 574 /* draw quad */ 575 renderer_draw_conditional(r, 4*8); 576 add_vertex_1tex(r, x0, y0, s0, t0); 577 add_vertex_1tex(r, x1, y0, s1, t0); 578 add_vertex_1tex(r, x1, y1, s1, t1); 579 add_vertex_1tex(r, x0, y1, s0, t1); 580} 581 582 583 584 585void renderer_draw_yuv(struct xorg_renderer *r, 586 int src_x, int src_y, int src_w, int src_h, 587 int dst_x, int dst_y, int dst_w, int dst_h, 588 struct pipe_texture **textures) 589{ 590 struct pipe_context *pipe = r->pipe; 591 struct pipe_buffer *buf = 0; 592 593 buf = setup_vertex_data_yuv(r, 594 src_x, src_y, src_w, src_h, 595 dst_x, dst_y, dst_w, dst_h, 596 textures); 597 598 if (buf) { 599 const int num_attribs = 2; /*pos + tex coord*/ 600 601 util_draw_vertex_buffer(pipe, buf, 0, 602 PIPE_PRIM_QUADS, 603 4, /* verts */ 604 num_attribs); /* attribs/vert */ 605 606 pipe_buffer_reference(&buf, NULL); 607 } 608} 609 610void renderer_begin_solid(struct xorg_renderer *r) 611{ 612 r->buffer_size = 0; 613 r->attrs_per_vertex = 2; 614} 615 616void renderer_solid(struct xorg_renderer *r, 617 int x0, int y0, 618 int x1, int y1, 619 float *color) 620{ 621 /* 622 debug_printf("solid rect[(%d, %d), (%d, %d)], rgba[%f, %f, %f, %f]\n", 623 x0, y0, x1, y1, color[0], color[1], color[2], color[3]);*/ 624 625 renderer_draw_conditional(r, 4 * 8); 626 627 /* 1st vertex */ 628 add_vertex_color(r, x0, y0, color); 629 /* 2nd vertex */ 630 add_vertex_color(r, x1, y0, color); 631 /* 3rd vertex */ 632 add_vertex_color(r, x1, y1, color); 633 /* 4th vertex */ 634 add_vertex_color(r, x0, y1, color); 635} 636 637void renderer_draw_flush(struct xorg_renderer *r) 638{ 639 renderer_draw_conditional(r, 0); 640} 641 642void renderer_begin_textures(struct xorg_renderer *r, 643 struct pipe_texture **textures, 644 int num_textures) 645{ 646 r->attrs_per_vertex = 1 + num_textures; 647 r->buffer_size = 0; 648} 649 650void renderer_texture(struct xorg_renderer *r, 651 int *pos, 652 int width, int height, 653 struct pipe_texture **textures, 654 int num_textures, 655 float *src_matrix, 656 float *mask_matrix) 657{ 658 659#if 0 660 if (src_matrix) { 661 debug_printf("src_matrix = \n"); 662 debug_printf("%f, %f, %f\n", src_matrix[0], src_matrix[1], src_matrix[2]); 663 debug_printf("%f, %f, %f\n", src_matrix[3], src_matrix[4], src_matrix[5]); 664 debug_printf("%f, %f, %f\n", src_matrix[6], src_matrix[7], src_matrix[8]); 665 } 666 if (mask_matrix) { 667 debug_printf("mask_matrix = \n"); 668 debug_printf("%f, %f, %f\n", mask_matrix[0], mask_matrix[1], mask_matrix[2]); 669 debug_printf("%f, %f, %f\n", mask_matrix[3], mask_matrix[4], mask_matrix[5]); 670 debug_printf("%f, %f, %f\n", mask_matrix[6], mask_matrix[7], mask_matrix[8]); 671 } 672#endif 673 674 switch(r->attrs_per_vertex) { 675 case 2: 676 renderer_draw_conditional(r, 4 * 8); 677 add_vertex_data1(r, 678 pos[0], pos[1], /* src */ 679 pos[4], pos[5], /* dst */ 680 width, height, 681 textures[0], src_matrix); 682 break; 683 case 3: 684 renderer_draw_conditional(r, 4 * 12); 685 add_vertex_data2(r, 686 pos[0], pos[1], /* src */ 687 pos[2], pos[3], /* mask */ 688 pos[4], pos[5], /* dst */ 689 width, height, 690 textures[0], textures[1], 691 src_matrix, mask_matrix); 692 break; 693 default: 694 debug_assert(!"Unsupported number of textures"); 695 break; 696 } 697} 698